Calculate the optimal pinhole diameter and effective aperture for a given focal length.
Rayleigh Criterion
d = 1.9 × √(λ × f), λ = 550 nm
- d
- ideal pinhole diameter (mm)
- f
- pinhole to film distance (mm)
- λ
- wavelength of light
Ideal pinhole diameter
N/A
Effective aperture
N/A
Convert a metered exposure to the correct shutter time for your pinhole camera and film speed.
Base exposure
N/A
With reciprocity
N/A